| 两个籼稻品种的钾素生产效率与若干生理特性的比较研究 |
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| 引用本文： | 符建荣,詹长庚,姜丽娜,余同海.两个籼稻品种的钾素生产效率与若干生理特性的比较研究[J].中国水稻科学,1994(2). |
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| 作者姓名： | 符建荣 詹长庚 姜丽娜 余同海 |
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| 作者单位： | 浙江省农业科学院，浙江省绍兴市农业科学研究所 |
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| 摘 要： | 以田间试验和室内分析评价水稻早籼品种Ｇ８８—２９３和浙８５２钾素生产效率及相关生理特性的差异．结果显示，Ｇ８８—２９３品种钾素生产效率高于浙８５２达２８．８％，其生理特性的优势主要表现为：１）全生育期需钾较少，但生育前、中期累积的钾素量及占总量的百分率超过浙８５２；２）生育前期植株具有较高的Ｎ，Ｐ含量，全生育期保持较高的含Ｋ率和Ｋ／Ｎ；３）齐穗期剑叶光合速率及茎鞘总糖积累量明显高于浙８５２；４）收获期具有较高的经济系数。
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| 关 键 词： | 钾素生产效率 钾素利用效率 生理特性 |
Comparison of K-production Efficiency and Some Physiological Characteristics of Two Indica Rice Varieties |
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| FU Jianrong,ZHAN Changgeng,JIANG Lina,Yu Toughai.Comparison of K-production Efficiency and Some Physiological Characteristics of Two Indica Rice Varieties[J].Chinese Journal of Rice Science,1994(2). |
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| Authors: | FU Jianrong ZHAN Changgeng JIANG Lina Yu Toughai |
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| Abstract: | Field trial and laboratory analysis were used to evaluate the differences between two indica ricevarieties in K-production efficiency and related physiological features. The results indicated that K-production efficiency of the G88-293 variety was 28.8% higher than that of Zhe 852. The advantages in physiological features of the G88-293 possesses over Zhe 852 are as following: 1) Relatively smaller requirement for K in whole life period but higher percentage of K absorption and accumulation during early to middle growth stages; 2) Higher NP content of plants at early growth stages and higher K and K/N ratio in whole life; 3)Higher photosynthetic rate of nag leaves and higher storage of total sugar in stem and sheath at heading stage; 4) Prefered harvest index. |
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| Keywords: | K-production efficiency K-using efficiency Physiological features |
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